No. 12313. Coates S.A.II Swalesong (G-AYDV c/n PFA 1353)
Photographed by Ron Smith

Coates S.A.II Swalesong

02/28/2014. Remarks by Johan Visschedijk: "James Ralph Coates of Hitchin, Hertfordshire, UK, designed this two-seat light aircraft for sporting and touring purposes, with an emphasis on a good short-field performance, to enable the aircraft to operate from unprepared surfaces. The design took ten years, while the construction took another four years. Although the aircraft was registered on May 18, 1970, it took another three years before the aircraft made its first flight from Panshanger, Welwyn Garden City, Hertfordshire, on September 10, 1973.

It was registered to the Coates family till May 25, 2011, when it was deregistered. Exactly six months later, November 25, 2011, it was registered to The Real Aeroplane Company at Harrogate, North Yorkshire, and presently it is under restoration at their facilities at Breighton Airfield.

TYPE: Two-seat light aircraft.
WINGS: Cantilever low-wing monoplane. Wing section NACA 23013.5. Dihedral 5 30'. Incidence 3 30'. All-wood (spruce) structure, with plywood covering. Built in three pieces, with 4-bolt attachment to fuselage at front and rear spars. Frise-type ailerons and slotted trailing-edge flaps, all of plywood-covered wooden construction.
FUSELAGE: Semi-monocoque spruce structure, with plywood covering.
TAIL UNIT: Cantilever structure, with sweptback vertical surfaces. Tailplane incidence adjustable on ground. One-piece fabric-covered wooden elevator, with spring tab.
LANDING GEAR: Non-retractable tricycle type, with spring and rubber shock-absorbers on main units, rubber only on nose unit. Light alloy wheels and same-size 15x5.5 tires, pressure 17 lb/ (1.2 kg/ on main units, 14 lb/ (0.98 kg/ on nose unit. Cable-operated drum brakes.
POWERPLANT: One 90 hp Continental C90 four-cylinder horizontally-opposed air-cooled engine, driving a 5 ft 2 in (1.52 m) two-blade fixed-pitch wooden propeller. Fuel in main tank in nose, capacity 17 gal (64 l), with 12 gal (45 l) reserve tank aft of seats. Refueling point in front of windscreen. Oil capacity 1.2 gal (4.5 l).
ACCOMMODATION: Side-by-side seating for pilot and one passenger in fully-enclosed cockpit, access to which was originally via a front-hinged window on each side. These were subsequently replaced by a rearward-sliding canopy. Cabin heated and ventilated.

Created February 28, 2014